Disposable multiwell tester



FIG. 1 is a top, front, and left side perspective view of a disposable multiwell tester showing my new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a front elevational view, the rear being a mirror image; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a disposable multiwell tester, as shown and described. 